import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet("/status")
public class StatusServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
       //响应的状态码
        int status=Integer.valueOf(req.getParameter("status"));
        if(status>0){
            resp.setStatus(status);
        }else {
            resp.setContentType("text/html;charset=utf-8");
            resp.getWriter().println("<h2>无效参数</h2>");
        }
    }
}
